40016571205122 has 12 divisors (see below), whose sum is σ = 86702570944470. Its totient is φ = 13338857068368.

The previous prime is 40016571204979. The next prime is 40016571205123. The reversal of 40016571205122 is 22150217561004.

40016571205122 is a `hidden beast` number, since 4 + 0 + 0 + 16 + 5 + 7 + 120 + 512 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 30999517133841 + 9017054071281 = 5567721^2 + 3002841^2 .

It is not an unprimeable number, because it can be changed into a prime (40016571205123) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1111571422347 + ... + 1111571422382.

Almost surely, 2^{40016571205122} is an apocalyptic number.

40016571205122 is an abundant number, since it is smaller than the sum of its proper divisors (46685999739348).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40016571205122 is a wasteful number, since it uses less digits than its factorization.

40016571205122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2223142844737 (or 2223142844734 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

Adding to 40016571205122 its reverse (22150217561004), we get a palindrome (62166788766126).

The spelling of 40016571205122 in words is "forty trillion, sixteen billion, five hundred seventy-one million, two hundred five thousand, one hundred twenty-two".